Impact of coculture with ischemic preconditioned hepatocellular carcinoma cell line (Hep-G2) cells on insulin secreting function of rat insulin-secreting cell line (RIN-5F) cells

D. J. Joo, J. Y. Kim, J. I. Lee, Y. S. Kim, Y. H. Fang, J. H. Jeong, M. S. Kim, K. H. Huh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Introduction: Although Islet cell isolation and culture have been well developed, there has been little progress to prolong transplanted islet sruvival. Hepatic ischemia and insufficient neovascularization of islets are considered to be the barriers to long-term survival, Hepatocytes that survive ischemic injury have been reported to protect themeslves and regenerate using the IL-6 interleukin 6 and STAT3 pathways. Materials and Methods: The hepatocellular carcinoma (Hep-G2) cell line preconditioned for 0, 2, 4, 6, and 24 hours in a hypoxic chamber, was cocultured with rat insulin-secreting celline (RIN-5F) cells. We measured cell viabilities, insulin secretion, and p-STAT3, IL-6, and NF-κB levels. Results: Cocultured Hep-G2 and RIN-5F cells aggregated to form spheroids. Viabilities of Hep-G2 cells were no different after various ischemic preconditioning times, but insulin secretion increased in a time-dependent fashion with preconditioning. Western blotting showed p-STAT3, NF-κB, and IL-6 levels to increase with preconditioning time. Conclusion: The IL-6/STAT3 pathway of Hep-G2 cells after ischemic injury showed beneficial effects on insulin secretion of RIN-5f cells cocultured with themselves.

Original languageEnglish
Pages (from-to)1099-1103
Number of pages5
JournalTransplantation Proceedings
Volume44
Issue number4
DOIs
Publication statusPublished - 2012 May

All Science Journal Classification (ASJC) codes

  • Surgery
  • Transplantation

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